Problem

The heat of vaporization of a liquid (ΔHvap) is the energy required to vaporize 1.00 g of...

The heat of vaporization of a liquid (ΔHvap) is the energy required to vaporize 1.00 g of the liquid at its boiling point. In one experiment, 60.0 g of liquid nitrogen (boiling point = -196°C) is poured into a Styrofoam cup containing 2.00 × 102 g of water at 55.3°C. Calculate the molar heat of vaporization of liquid nitrogen if the final temperature of the water is 41.0°C.

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